Brake mechanism



Patented Jungs, 1920.

2 SHEET SHEETI Vage Hmm alg w. Hi SAUVAGE.

BRAKE MECHANLSM. A v APPLICATION VFILEDY OVCIZ. 23. `1917.l Y

` Patented June 8, 1920 2 SHEETS-'SHEET 2.

kwam@ .freight cars, although-it is ofcourse appli cable to otherformsof cars and vehicles.

Omar-:.1

l H. spgUvAeE.' or LUsHiNcn NEwYonK.- A

imcnamsilr...

Be it known that I, WILLIAiir Shuman, 1 ifa citizen of thev UnitedStates, i.'esid'ing at v and more particularly 4to Fig. v1, 5 denotesFlushing,v in the county 'of-Queens and'State vof New York, haveinvented certainnew and useful Improvements in Brakel Mechanism,

of which the following is' a specification.

Thisinvention relates' to brake.mechar nism andmore particularlyfto handbrake mechanism particularly adapted .for use on One of the objects ofthe present invention isto provide a simple and practicalv hand brakeforcars which will-l be quick-acting and of a high power. further lObjectisto provide. a hand brake-mechanism for ob- -tainingthe maximum'efficiency from the few parts which will notgbe likely to get out oforderV and l.which vmay be` 1nade easily,

` i with brake shoes 22 adapted toco-act with g power applied. A furtherobject is to pro' vide a hand brake mechanism which may be Aeasily andquickly' applied ftoth'e lbraking l mechanism of systems' now 'employedon freight cars without materialalterations and at aminimum ofl expense.A further obj ect' is to provide y,a hand brake having relatively :Thisinvention amending yfnnnsi'sts in the I features of construction,combination of parts and in hei uniqueA relationsv of the he. relativeproportioning and disposition"there f f,' allv as more completelyoutlined herein.:

To' enable others Ski-una in, henri "nov fully` to comprehendtheunderlying features thereof'l thatv they 4may embody -the same by thenumerous modifications in structure' and relation contemplated bythisinvention, drawings depictingy a preferred form have been annexed asa part of this disclosure', and in such drawings,'like characters ofreference denote corresponding parts throughout 'all the views, in whichFigure 1 is a diagrammaticview-showing the entire brake mechanism;v

Fig. 2 is. a-vertical sectional elevationah view ofthe hand brake;`

Fig. 3 is lafplanview' of the .hand brake vwith certain parts shown indotted lines;

specfication of Lettsratent.

l Patented une "8,

Fig.l 4 is aside elevationiatright angles lllo-Fi. 2 l. A' Referring nowto the drawings inldetail with a relatively short lever 10 pivoted to aiXed supportV 11 on the vunder side of thev 'car body.v A exibleconnection '12, such as a chain, eXtendsvbetween this lever 10 and theouter end 13 of the'V piston ofthe air brake power cylinder 14wherebythe power cylinder or air'brakel system may operate without affectingthe `hand brake mechanism. This cylinder Mis-.connected at its rear-endwith `a lever 15 and the end of the piston is connected by-means' oflevers 16 link 17.

` The opposite ends of the levers 15 and 16 'i 'are connected by A'pull.rods 19 to the truck` ,braking mechanism, which'is indicated by abolster 18 and live and dea-dlevers 2 0 and 21 respectively. These.levers are vprovided the adjacent surfaces of the .wheelsofthe ltruck inthe vusual ymanner. It is to be- -noted that these levers are so.'positioned, ar-

ranged and` proportioned 'substantially as indicated, wherebya pullof4indicated di mensions upon the pull rod 8 will transmit highpower totlie live and dead levers of` the trunk brake rigging. This indicatedpnu The. brake staff 5 is provided withv a shoul- .der at its upper endupon which rests a .washer 25support1ng a concave plate 26 hav-inglanupturned flange provi ded` with is a squared portion 28 upon which ismounted'a disk 30 carrying twopinions 31 is Aobtained-byl means of thehand brakev I mechanism shown in detail in Figs. 2 and 3.

and 32 meshing with .the rack 27 and also a' gears 31 and 32 to the gear27 in any desired ratio of speed. It-is to be noted which are spacedapart vbymeans of a; 75 .i

^ staff.

rotated, the planetary the central geary33 and the peripheral gear 27,

that the upper disk plate or hand wheel 341 is provided witlia pawl 35adjacent Athe periphery whereby it may be conveniently actuated by thethumb ofthe operator to release the same from engagement with the rack 27, thus uli-coupling the disk wheel and ing a fresh grip upon the handwheel.

This device is operated substantially as follows:

Assuming the brakes are to be applied by' hand, the operator grasps thehand wheel 34.

and turns the same rapidly in a clockwise direction Fig. Y3, the pawl 36passing over the fixed stop 37 at each turn. This enables the operatorto easily and quickly take -up the slack of the chain 7 upon thel brakeAs soon however as the brakes are brought to 'a position of application,.the operator depresses the latch or pawl 35 and uncouples the hand diskwheel 34 and disk 26, whereupon the planetarygearing comes'intooperation. As soon as the pawl 35 is released the pawl 36 will back upagainst the stop 37 and prevent further rotation thereof, and for allpractical purposes the member 26 is stationary. As the wheel 34 isthenfurther gears, acting between will cause the brake staff to rotate at aslower rate of speed but with greatly increased power. As herein shown,the gear 27 is provided witli forty-eight teeth, while the central gearis provided with sixteenteeth, thus providing a ratio of 1 to 3. Itis,however, of course to be understood that other ratios may be .employedas desired. It is believed however that the ratio of l to 3 is the morepractical.

It is thus seen that the present invention provides a simple, practicaland highly eflicient hand brake system, particularly adapted for use onfreight cars which will be inexpensive to manufacture and apply tofreight cars now in general use'. The inv'ention in 'short is simple andaccomplishes among others all ofthe objects herein set forth. i

I realize that considerable variation is bital gear with ratchet holdingmechanism,

- said staff carrying planetary plate having anv orbital gear with whichsaid lfor locking l gear in fixed tion, a disk possible in the detailsof construction and.

arrangement of parts without departing' from the spirit of my invention,and I therefore do not intendto limit myself to the 'specific form shownand described.

ratchet holding mechanism,l a hand wheel mounted on said staff providedwith a central gear, a disk fixed upon said staff carrying planetarygears, a` plate having an or- Y which said planetary gears are adaptedto mesh,- act therewith, and means for locking'the hand wheel andAorbital gear together.`

'2. In a hand brake mechanism', in combinatioii, a brake staff having apawl and a hand wheel a stop adapted to comounted at the *upper end ofsaid staff provided with a central gear, a disk fixed upon gears, and aplanetary gears are adapted to mesh, means the hand wheel and orbitalgear together, and means for holding said orbital position when saidhand wheel andoi'bital gear are disconnected.

3. In a hand, brake mechanism, in com.

bination a brake staff a hand wheel loosel mounted thereon having acentral gear, a plate fixed to said staff having-planetary gears, anorbital gear with which said planetary gears are adapted` to mesh, meansfor connecting and mounted upon said staff having a holding..

mechanism adapted to prevent reverse- 'rotaing planetary gears, mountedupon said staff, having a sun gear and latch mechanism for connectingand disconnecting tlie s un gear and the orbital gear at will.

In testimony whereof I afiix my signature in the presence of twowitnesses. v WILLIAM H. SAUVAGE.

IVitnesses:

BENJAMIN R. Huss,

FRANK YAHLE.

l disconnecting the hand wheel, and orbital gear at will, and lockingSupported 'by said plate carrya power wheel loosely

